mongodb_list_databases

Retrieve a list of all databases in MongoDB to manage data storage and organization within the MCP Mac Apps Server environment.

Instructions

Получает список всех баз данных в MongoDB

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Implementation Reference

src/index.ts:645-669 (handler)

Main handler function that connects to MongoDB, lists all databases via admin().listDatabases(), filters out system databases (admin, config, local), and returns a formatted text response.

private async mongodbListDatabases() {
  const client = await this.getMongoClient();
  try {
    const adminDb = client.db().admin();
    const { databases } = await adminDb.listDatabases();
    const dbNames = databases
      .map((db) => db.name)
      .filter((name) => !["admin", "config", "local"].includes(name));
    
    return {
      content: [
        {
          type: "text",
          text: `Базы данных:\n${dbNames.length > 0 ? dbNames.join("\n") : "Базы данных не найдены"}`,
        },
      ],
    };
  } catch (error) {
    throw new Error(
      `Ошибка получения списка баз данных: ${error instanceof Error ? error.message : String(error)}`
    );
  } finally {
    await client.close();
  }
}

src/index.ts:172-178 (schema)

Tool schema definition in the ListTools response, specifying name, description, and empty input schema (no parameters required).

  name: "mongodb_list_databases",
  description: "Получает список всех баз данных в MongoDB",
  inputSchema: {
    type: "object",
    properties: {},
  },
},

src/index.ts:341-342 (registration)
Dispatch/registration in the CallToolRequestHandler switch statement that routes the tool call to the mongodbListDatabases method.
```
case "mongodb_list_databases":
  return await this.mongodbListDatabases();
```

src/server.py:430-449 (handler)

Python implementation of the handler function using pymongo to list databases, filtering system ones, returning formatted text. Note: dispatch case is commented out.

def mongodb_list_databases() -> str:
    """Gets list of databases"""
    client = MongoClient(MONGODB_URI)
    try:
        admin_db = client.admin
        databases = admin_db.command("listDatabases")
        db_names = [
            db["name"]
            for db in databases["databases"]
            if db["name"] not in ["admin", "config", "local"]
        ]
        result = "Databases:\n" + (
            "\n".join(db_names) if db_names else "No databases found"
        )
        return result
    except Exception as e:
        raise Exception(f"Error getting list of databases: {str(e)}")
    finally:
        client.close()

src/index.ts:615-619 (helper)

Helper method to create and connect a MongoClient instance, reused by all MongoDB tools.

private async getMongoClient(): Promise<MongoClient> {
  const client = new MongoClient(MONGODB_URI);
  await client.connect();
  return client;
}

MCP Mac Apps Server